Ixvi 
NATURE 
[Marcu 3, 1923 

UNIVERSITY OF LONDON. 
A course of four lectures on “‘ELectrric Fretps in Atomic Puysics” 
will be given by Professor E. T. WHITTAKER, F.R.S. (Professor of 
Mathematics in the University of Edinburgh), at Universiry CoLLEGE, 
Lonpon (Gower Street, W.C.1), on March 13, 15, 20, and 22, 1923, at 
5-15 P.M. At the first lecture the Chair will be taken by Professor L. N. G. 
Fiton, F.R.S. (Goldsmid Professor of Applied Mathematics and Mechanics 
in the University), ADMISSION FREE, WITHOUT TICKET. 
Syllabus on application to the undersigned. 
EDWIN DELLER, Academic Registrar. 

KEBLE COLLEGE, OXFORD. 
NATURAL SCIENCE SCHOLARSHIP, 1923- 
An Examination wiil be held in this College on March 13 for two 
SCIENCE SCHOLARSHIPS of the annual value of £80, with laboratory 
fees £20. 
Subjects: Chemistry o7 Biology, with elementary Physics, and for 
Biologists elementary Chemistry as well. 
Intending candidates should apply to Dr. Hatcuetr Jackson, the 
Science Tutor, for information. 

BEDFORD COLLEGE FOR WOMEN 
(UNIVERSITY OF LONDON). 
POST-GRADUATE SCHOLARSHIP IN SOCIOLOGY. 
The Council of Bedford College for Women invite applications for the 
above scholarship. Value £150 for one year. Open to women only. 
For further information apply THe Secretary, Bedford College, 
Regent’s Park, N.W.r. 

APPOINTMENTS BOARD 
OF THE 
IMPERIAL COLLEGE OF SCIENCE 
AND TECHNOLOGY, 
SOUTH KENSINGTON, S.W.7. 
EMPLOYERS requiring men who have received a thorough training in 
Science and Technology, and who are Diplomates or Associates of the 
Imperial College, or of one of its three constituent Colleges, are asked to 
et use of the services of the Board. No fees. 
The Imperial College includes The Royal College of Science, The Royal 
School of Mines, and The City and Guilds (Engineering) College. The 
Associates of the Colleges receive thorough training in Science and ‘Tech- 
nology, including Aeronautics, Applied Optics and Optical Engineering, 
Biology, Chemical Technology, Chemistry (all branches), Engineering (all 
branches, including Metallurgy, Mining, Mining Geology and Oil ‘Tech- 
nology), Geology, Mathematics and Mechanics, and Physics. 

BATTERSEA POLYTECHNIC. 
Principal—* RopertT H. Pickarp, D.Sc., F.R.S, 
University Courses, day and evening, under Recognised Teachers of 
the University of London are provided in Science, Engineering and Music. 
CHEMISTRY.—*J. Kenyon, D.Sc., F.I.C.; *J. L. Wurre, D.Sc. 
PHYSICS.—* S. Marsu, B.Sc., Ph.D.; *A. E. Evans, B.Sc. 
MATHEMATICS.—* F. M. Saxevsy, M.Sc., B.A.; *F. W. Harvey, 
B.Sc., M.A. ; * W. G. Bickiry, M.Sc. 
MECHANICAL AND CIVIL ENGINEERING.—*W. E. M. 
Curnock, M.Sc., B.Eng.; *J. B. SHaw, A.R,C.S., Wh.Ex.; *H. M. 
Epmonps, B.Sc. ; * V. C. Davirs, B.Sc., A.M.I.Mech.E.; *H. L. Dinc- 
WALL, B.Sc.(Eng.); K. Hamitton, B.Sc, (Eng.); A. Watson, B.Sc. (Eng.). 
ELECTRICAL ENGINEERING.—*A. T. Dover, M.I.E.E., 
A.Am.1.E.E.; *H. C. Mann, A.M.I.E.E.; *H. W. Harrripce, 
A.M.I.M.E.; *A. M. Parxrnson, B.Sc. (Eng.). 
MUSIC.—* H. D. WETTON, Mus. Doc., F.R.C.O. 
* Denotes recognised teacher of University of London. 
There are also :— 
Day Technical College in Engineering and Science. Day Training 
College of Domestic Science. Day Department of Hygiene and 
Physiology. Day School of Art and Crafts. 
Evening Courses in Engineering, Chemistry, Physics, Mathematics, 
Bacteriology, Chemical Engineering, Hygiene and Physiology, Art, 
Matriculation Subjects, Domestic Economy, Music, Physical Training. 
Hostels for Women Students. Large playing fields at Merton. 
Se '----'00€0€@—C—C— OES 
ST. SAVIOUR’S AND ST. OLAVE’S GRAMMAR 
SCHOOL FOR GIRLS, 
NEW KENT ROAD, LONDON, S.E.1. 
WANTED, for September, SCIENCE MISTRESS to take Zoology in 
Advanced Course and assist in Botany to Matriculation standard and in 
General Elementary Science in Middle School. Good degree and experience 
in teaching in Secondary School essential. Training preferred. Burnham 
Scale for London.—Apply to HEADMISTRESS. 
CHELSEA POLYTECHNIC, 
CHELSEA, S.W.3. 
Day and Evening Courses in Science under Recognised Teachers 
of London University. 
. INDUSTRIAL CHEMISTRY DEPARTMENT. 
Technical Courses in Analytical and Manvfacturing Chemistry, 
Pharmacy, Food and Drugs, A.I.C. Courses, Metallurgy, Assaying, 
Foundry Work, Research. 
Il. INDUSTRIAL PHYSICS DEPARTMENT. 
Practical work in General Physics, Applications to Industries, 
Metrology, Calorimetry, Illumination, Acoustics, Electrical 
Measurement, Research. 
lll. BIOLOGICAL AND GEOLOGICAL DEPARTMENT. 
Courses for B.Sc., etc., in Botany, Geology, Mineralogy, Zoology, 
Special Courses in Bio-chemistry, Bio-physics, Bacteriology, 
Physiology, Hygiene, Entomology, Plant Pathology. Course for 
Tropical Planters, Research. 













SIDNEY SKINNER, M.A., 
Telephone: Kensington 809. Principal. 
BIRKBECK COLLEGE. 
(UNIVERSITY OF LONDON.) 
Principal—GEORGE SENTER, D.Sc., Ph.D., F.1.C. 
EVENING COURSES for the Degrees of the 
University of London in the Faculty of Science and 
for the Geography Diploma. 
Facilities are also provided during both day and 
evening for Post-Graduate and Research Work. 
Calendar, 1s.; by post, 1s. 5d. Prospectus free. 

For full particulars, apply to the SECRETARY, 
Birkbeck College, Fetter Lane, E.C.4. 

LOWESTOFT SECONDARY SCHOOL, | 
APPOINTMENT OF HEADMASTER. 
Applications are invited for the vacant post of HEADMASTER of the 
Lowestoft Secondary School. The successful candidate to take up duties 
on September 1, 1923. 
The School is a day school of 430 boys and girls, governed by a Joint 
Committee appointed by the East Suffolk County Council and the Town 
Council of the Borough of Lowestoft, and is recognised by the Board o' 
Education under the Secondary Schools Regulations. A copy of the 
Articles of Government can be obtained from the undersigned. Price 
sixpence. 
Applicants must hold a good Honours Degree of a British University, 
and must not be over 45 years of age. 
Salary £700 per annum. 
Form of Application can be obtained on receipt of a stamped addressed 
Foolscap Envelope. Applications to be sent in to the undersigned on or 
before March 28, accompanied by copies of not more than three recent 
testimonials. 
Canvassing members of the Joint Committee, either directly or indirectly, 
will disqualify candidates. 
R. BEATTIE NICHOLSON, 
Town-Clerk, Lowestoft, and Secretary 
to the Joint Committee. 
Education Offices, Town Hall, 
Lowestoft, 
February 21, 1923. 

UNIVERSITY OF ST. ANDREWS. 
CHAIR OF CHEMISTRY IN UNITED COLLEGE AND DIRECTORSHIP 
OF CHEMISTRY RESEARCH LABORATORY, ST. ANDREWS. 
The University Court of the University of St. Andrews invite applications 
for the Vacant CHAIR OF CHEMISTRY in the United College of St. 
Salvator and St. Leonard, and for the Directorship of the Chemistry 
Research Laboratory at St. Andrews. The Professor to be appointed will 
enter upon his duties at October 1. Further particulars will i furnished 
by the undersigned, to whom applications, with at least three references, 
should be sent, not later than May 15. 
3 ANDREW BENNETT, 
The University, St. Andrews, Secretary and Registrar. 
February 1923. 

EXCITING SEA EXPEDITION— 
Vacancies for scientific men. Capital essential. Lecion, 6 Adam 
Street, Adelphi, London, W.C.2. 
X-RAY TUBE STAND FOR SALE—Also 
a Screen, etc. Write for list. Box No. 60, clo NATURE 
nce. 

